<template>
  <div class="ad-edit">
    <h1>{{ id ? "编辑" : "新建" }}广告位</h1>
    <el-form label-width="100px" @submit.native.prevent="save">
      <el-form-item label="名称">
        <el-input v-model="model.name"></el-input>
      </el-form-item>
      <el-form-item label="广告详情">
        <el-button @click="model.items.push({})">
          <i class="el-icon-plus"></i>
          添加广告
        </el-button>
        <el-row type="flex" style="flex-wrap:wrap;margin-top:1rem">
          <el-col :md="12" v-for="(item, i) in model.items" :key="i">
            <!-- 跳转链接 -->
            <el-form-item label="跳转链接URL">
              <el-input v-model="item.url"></el-input>
            </el-form-item>
            <!-- 广告图片 -->
            <el-form-item label="广告图片" style="margin-top:0.5rem">
              <el-upload
                class="avatar-uploader"
                :action="$http.defaults.baseURL + '/upload'"
                :show-file-list="false"
                :on-success="(res) => $set(item, 'image', res.url)"
              >
                <img v-if="item.image" :src="item.image" class="avatar" />
                <i v-else class="el-icon-plus avatar-uploader-icon"></i>
              </el-upload>
            </el-form-item>
            <!-- 广告删除 -->
            <el-form-item>
              <el-button
                size="small"
                type="danger"
                style="margin-left:120px"
                @click="model.items.splice(i, 1)"
              >
                删除
              </el-button>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" native-type="sumbit">
          保存
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  props: {
    id: {},
  },
  data() {
    return {
      model: {
        items: [],
      },
    };
  },
  mounted() {
    this.id && this.fetch();
  },
  methods: {
    save() {
      let http;
      if (this.id) {
        http = this.$http.put(`rest/ads/${this.id}`, this.model);
      } else {
        http = this.$http.post("rest/ads", this.model);
      }
      http.then(() => {
        this.$router.push("/ads/list");
        this.$message({
          type: "success",
          message: "保存成功",
        });
      });
    },
    fetch() {
      this.$http.get(`rest/ads/${this.id}`).then((res) => {
        this.model = Object.assign({}, this.model, res.data);
      });
    },
  },
};
</script>
